Description of node <>

Subject Predicate Object <p>The survey base consists of the legal units surveyed by the annual sector Survey (ESA) of&nbsp; construction companies. It is restricted to legal units that verify the three following criteria:<br />- its Siren number (registration number) ends with one of the two figures held in the year in question, so that a complete "cycle" of renewal of the sample lasts five years; <br />- its reported or imputed turnover of building maintenance and improvement works is 200,000&nbsp;euros or more in at least one of the ten NAF4 level classes; <br />- the legal unit is part of either the "comprehensive strata" of ESA construction survey or the "random stratum" (once the legal units already surveyed during the five-year cycle of completion are withdrawn). The objective is to limit the statistical burden on the smaller legal units.</p>